Audio-Technica AT4081 Manual

Audio-Technica Mikrofon AT4081

Læs gratis den danske manual til Audio-Technica AT4081 (4 sider) i kategorien Mikrofon. Denne vejledning er vurderet som hjælpsom af 19 personer og har en gennemsnitlig bedømmelse på 4.5 stjerner ud af 10 anmeldelser. Har du et spørgsmål om Audio-Technica AT4081, eller vil du spørge andre brugere om produktet?

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40 series microphones

AT4081

Bidirectional Active Ribbon Microphone

Features

• Smooth,warmandnaturalsoundwithprecise,articulatedetail

 tomeetthecriticalrequirementsoftoday’srecording,broadcast

 andsoundreinforcementprofessionals

• GroundbreakingAudio-Technicaribbondesignwith18patents

 pending

• ProprietaryMicroLinear™ribbonimprintforsuperiordurability

 andfreedomfromlateralexinganddistortion

• Innovativedualribbonconstructionforincreasedsensitivity

• ExtremelypowerfulN50rare-earthneodymiummagnetsforhigh

 outputlevel

• Ultra-nemeshhelpsprotectagainstribbondamagefromwind

 andplosives

• Classicbidirectional(gure-of-eight)polarpatternpicksup

 soundsequallyfromthefrontandbackoftheelement

• High-SPLcapabilityforexceptionallyversatileperformance

• Extendedfrequencyresponsefornaturalaudioreproduction

• Handmadeproduction–includingribboncorrugation,imprint

 andassembly

• Low-prolestickdesignmaximizesplacementoptions

• Phantom-poweredactiveelectronicsprovidestableimpedance

 andhigheroutputformaximumcompatibilitywithmicrophone

 preampliers

Description

The AT4081 is a side-address active ribbon microphone with a

bidirectional polar pattern. Delivering the warmth and natural sound

of a classic ribbon microphone, the AT4081offers a robust build for

long-lasting performance and high gain for easy use with microphone

preampliers.

With 18 patents pending, Audio-Technica’s innovative ribbon transducer

advances the evolution of ribbon microphone technology, combining

remarkable durability and high-SPL capability with smooth, rich audio

quality. The microphone is recommended for horns, strings, acoustic

instruments, drum overheads, orchestras, ensembles and guitar cabinets.

It excels in recording studios as well as in live-sound settings.

A signicant breakthrough in ribbon cartridge design, Audio-Technica’s

patent-pending MicroLinear ™

ribbon imprint minimizes ribbon distortion

for durable performance and accurate reproduction of the sound source.

While the application of phantom power was prohibited for old-

school ribbon microphones, Audio-Technica’s AT4081 requires 48V

phantom power for operation. The phantom power is used—not for the

microphone’s dynamic ribbon transducer—but for its active electronics,

which bring its output to near condenser microphone level. This high-

output and stable impedance make the microphone easy to integrate

with microphone preampliers.

The bidirectional polar pattern of the microphone makes it equally

sensitive to sounds originating in front and back of the element.

The output of the microphone is a 3-pin XLRM-type connector.

The microphone is enclosed in a rugged housing. The included AT8471

isolation clamp provides superior isolation and permits mounting on any

microphone stand with 5/8"-27 threads. A windscreen and a protective

carrying case are also included.

Operation & Maintenance

The AT4081 requires 48V phantom power for operation.

Output is low impedance (Lo-Z) balanced. The signal appears across Pins

2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot” – positive

acoustic pressure produces positive voltage at Pin 2.

To avoid phase cancellation and poor sound, all mic cables must be wired

consistently: Pin 1-to-Pin 1, etc.

An Audio-Technica emblem is on the front of the microphone. Position this

side of the microphone toward the sound source.

Note: While Audio-Technica ribbon microphones designed for superior

durability, we recommend the following precautions when dealing with

ribbon microphones: do not blow directly into the ribbon assembly; use the

supplied windscreen for up-close vocal use.

Take care to keep foreign particles from entering the windscreen. An

accumulation of foreign material in the ribbon structure and/or the

windscreen’s mesh surface, can degrade performance. Avoid leaving the

microphone in the open sun or in areas where temperatures exceed 110°

F (43° C) for extended periods. Extremely high humidity should also be

avoided.

Architect’s and Engineer’s Specications

The microphone shall be an active ribbon microphone with a side-address

stick design. It shall have a bidirectional polar pattern and a frequency

response of 30 Hz to 18,000 Hz. The microphone shall operate from an

external 48V DC phantom power source. It shall be capable of handling

sound input levels up to 150 dB with a dynamic range of 125 dB. Nominal

open-circuit output voltage shall be 7.9 mV at 1V, 1 Pascal. Output shall

be low impedance balanced (100 ohms).

The output of the microphone shall be a 3-pin XLRM-type connector.

The microphone shall be 155.0 mm (6.10") long and have a body diameter

of 21.0 mm (0.83"). Weight shall be 152 g (5.4 oz). The microphone shall

include an isolation clamp, a windscreen and a protective carrying case.

The Audio-Technica AT4081 is specied.

Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

AT4081

Specications

LEGEND

200 Hz

1 kHz

5 kHz

8 kHzSCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚

0˚

150˚

120˚

90˚

30˚

60˚

12" or more on axisLEGEND

Frequency in Hertz

Response in dB

10 dB

100

50 200 10k5k

500 2k 20k

frequency response: 30– 18,000 Hz

polar pattern

Ribbon

Figure-of-eight

30-18,000 Hz

–42 dB (7.9 mV) re 1V at 1 Pa

100 ohms

150 dB SPL, 1 kHz at 1% T.H.D.

25 dB SPL

125 dB, 1 kHz at Max SPL

69 dB, 1 kHz at 1 Pa

48 V DC, 3.0 mA typical

152 g (5.4 oz)

155.0 mm (6.10") long, 21.0 mm (0.83")

maximum body diameter

Integral 3-pin XLRM-type

S13

AT8471 isolation clamp for 5/8"-27

threaded stands; 5/8"-27 to 3/8"-16

threaded adapter; windscreen; protective

carrying case

Element

Polar pattern

Frequency response

Open circuit sensitivity

Impedance

Maximum input sound level

Noise1

Dynamic range (typical)

Signal-to-noise ratio1

Phantom power requirements

Weight

Dimensions

Output connector

Audio-Technica case style

Accessories furnished

In the interest of standards development, A.T.U.S.

offers full details on its test methods to other industry

professionals on request.

1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

1 Typical, A-weighted, using Audio Precision System One.

Specications are subject to change without notice.

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	AT4081

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